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Master Model MSDB tempdb SQL Built-in System Database Function

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Master Database

The master database is used to record all system-level information. It records all login accounts and system configuration settings. It also records the locations of other databases, including database files.

Model Database

A model database is a template used to create a database. When you create a database, it simply copies the template.

MSDB Database

MSDB database provides SQL Server proxyProgramUsed to schedule alarms and jobs and record Operators

Tempdb Database

It is used to store temporary tables and zero-time stored procedures. Each time the system restarts, it will clear the previous data, so it is clean every time the system restarts.

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